Find all real solutions to the equation.
+ 
= -1
A. {0}
B. 
C. {1}
D. ?
Answer: D
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Use absolute value notation to describe the situation. ? The temperature in Bismarck, North Dakota was 72°F at noon, then 33°F at midnight. What was the change in temperature over the 12-hour period? ?
A. |72°F - 33°F| ? 39°F B. |72°F- 33°F| = 39°F C. |72°F - 33°F| ? 39°F D. |72°F - 33°F| < 39°F E. |72°F - 33°F| > 39°F
Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 8
B. 
; 4
C. 
; 4
D. 
; 8
Determine the phase shift of the function.y = 2 cos (8x + ?)
A. 
units to the left
B. 2? units to the right
C. 8? units to the right
D. 
units to the left
All the cows in a certain herd are white-faced. The probability that a white-faced calf will be born by mating with a certain bull is 0.8. Suppose 2 cows are bred to the same bull. Find the probability, that no white-faced calves will be born. ? Please round your answer to four decimal places. ? P = __________
Fill in the blank(s) with the appropriate word(s).